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. 1992 Jul;66(7):4452-6.
doi: 10.1128/JVI.66.7.4452-4456.1992.

The human cytomegalovirus 80-kilodalton but not the 72-kilodalton immediate-early protein transactivates heterologous promoters in a TATA box-dependent mechanism and interacts directly with TFIID

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The human cytomegalovirus 80-kilodalton but not the 72-kilodalton immediate-early protein transactivates heterologous promoters in a TATA box-dependent mechanism and interacts directly with TFIID

C Hagemeier et al. J Virol. 1992 Jul.

Abstract

We have asked how the human cytomegalovirus major immediate-early 1 (IE1) and 2 (IE2) proteins act to transactivate heterologous cellular and viral promoters. Here we show that transactivation of the human immunodeficiency virus long terminal repeat and the 70,000-molecular-weight heat shock protein (hsp70) promoter by IE1 is TATA box independent and that the IE1 protein does not interact directly with the TATA box-binding factor TFIID. Conversely, transactivation of these promoters by IE2 is TATA box dependent and a direct interaction between IE2 and TFIID occurs, suggesting that IE2 transactivation is mediated through interaction with TFIID.

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